Title (en)

Thermoplastic laminate duct

Title (de)

Thermoplastischer Verbundkanal

Title (fr)

Conduit thermoplastique stratifié

Publication

EP 1394462 A1 20040303 (EN)

Application

EP 03077427 A 20030801

Priority

US 21611002 A 20020809

Abstract (en)

There is provided a duct (10) and an associated preform (60) and method. The duct (10) is formed of a thermoplastic material and is lightweight, strong, flame and smoke resistant, and non-toxic. The duct (10) is formed from a flat laminate (58) and does not require a specialized, disposable mandrel for supporting conventional thermoset plies. Preferably, the duct (10) is formed from a preform (60), which is cut according to the desired shape and size of the duct so that trimming after the duct has been formed is not required. Additionally, features such as holes (74) and spud locations (70,72) can be provided by cutting or marking the preform before forming the duct. Each duct (10) can be formed of multiple articulated segments (20) that are joined by connectors (80). <IMAGE>

IPC 1-7

F16L 43/00; F16L 47/26; F24F 13/02

IPC 8 full level

B29D 23/00 (2006.01); F16L 43/00 (2006.01); F16L 47/26 (2006.01)

CPC (source: EP US)

B29D 23/006 (2013.01 - EP US); F16L 43/00 (2013.01 - EP US); F16L 43/008 (2013.01 - EP US); F24F 13/02 (2013.01 - EP US); F24F 13/0209 (2013.01 - EP US); F24F 13/0218 (2013.01 - EP US); F24F 13/0272 (2013.01 - EP US); Y10T 428/24628 (2015.01 - EP US); Y10T 428/31504 (2015.04 - EP US)

Citation (search report)

• [XA] CA 2367573 A1 20020712 - WATER PIK INC [US]
• [X] US 2823703 A 19580218 - NUSSER JR OTTO
• [X] GB 1403744 A 19750828 - PICCOLI D
• [X] US 5473815 A 19951212 - SONDEN CARL-GUSTAF [SE], et al
• [A] GB 812956 A 19590506 - POTTERIES VENTILATING & HEATIN
• [A] GB 1301858 A 19730104
• [A] GB 1429220 A 19760324 - KITSONS INSULATION PROD
• [A] US 4099749 A 19780711 - VAN VLIET CORS
• [A] US 6140411 A 20001031 - SCHWAMBORN KLAUS [DE], et al & US 2002117229 A1 20020829 - LUETTGEN HAROLD A [US], et al

Designated contracting state (EPC)

ES FR GB IT

DOCDB simple family (publication)

EP 1394462 A1 20040303; EP 1394462 B1 20061025; CA 2435022 A1 20040209; CA 2435022 C 20090929; ES 2271471 T3 20070416; US 2004050487 A1 20040318; US 7097804 B2 20060829

DOCDB simple family (application)

EP 03077427 A 20030801; CA 2435022 A 20030711; ES 03077427 T 20030801; US 21611002 A 20020809